Heel-trimming machine



(No Model.) a Sheets-Shet 1.

G. H. TRASK.

HEEL TRIMMING MACHINE. No. 357,741. Patented Feb. 15, 1887.

N. PETERS. PhehrLilhcgmphcn Wnshi n nnnnn a iNvENTU (No Model.) 3 Sheets-Sheet 2.

- 0. H. TRASK.

HEEL TRIMMING MACHINE. N0. 357,7;1. Patented Feb. 15,1887.

(N0 Medel.) 3 Sheets-Sheet 3. C. H. TRASK.

HEEL TRIMMING MACHINE.

No. 357,741. Patented Feb. 15, 1887.

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UNITED STATES PATENT OFFICE.

CHARLES H. TRASK, OF LYNN, MASSACHUSETTS.

HEEL-TRIMMING MACHINE.

SPECIFICATION forming part of Letters Patent No. 357.741, dated February 15, 1887.

Application filed June 15, 1886. Serial No. 205,204. (No model.)

To all whom it may concern:

Be it known that 1, CHARLES H. TRASK, of Lynn, in the county of Essex and State of Massachusetts, a citizen of the United States, have invented a new and useful Improvement in Heel-Tri rnmin g Machines, of which the following is a full, clear, and exact description, reference being bad to the accompanying drawings, forming a part of this specification, in explaining its nature.

The invention is an improvement upon that described in my application for Letters Patent of the United States filed June 7, 1886, Serial No. 204,324; and it relates especially to the heel-edge cutter or trimmer, to the heel-rest and use in connection therewith, and to a suspended top-lift guide and rest which is made movable with one part or section of the cutter by the work as it is being presented in opposition to spring-pressure and with the heel rest.

In the drawings, Figure 1 represents a front elevation of a machine containing the features of my invention. Fig. 2 represents an end view in elevation thereof. Fig. 3 is a section upon the line x 00 of Fig. 2. Fig. t is asection upon the line 3 y of Fig. 2, showing in elevation the parts on said line. Figs. 5, 6, and 7 represent one form of cutter which I prefer to use. Figs. 8 and 9 show a modified form, to which reference is hereinafter made.

The sole-edge cutter A, the shank-edge cut ter B, and the heel-edge cutter or trimmer C are mounted upon their respective shafts, a b c, and bear the relation to each other and are operated substantially as described in my said application. The heel-edge cutter or trimmer O, I have represented as made in two parts or sections, 00, and because of the form or shape of the two sections I call the cutter a clutchcutter.

The section 0 of the cutter is made with two long tapering surfaces, 0 0- which are separated from each other by a shoulder, a, and the taper c is somewhat in advance of the taper c -that is, it starts farther from the back of the cutter and extends farther forward. The other or front section, C, of the cutter has its inner surface correspondingly shaped-that is, it has two longtapers and a shoulder which are the reverse of the two long tapers c c of the section a By forming the cutters in two sections, as above indicated, provision for the separation of the sections in relation to each other is obtaiucd, while, however, the shoulders remain in contact with each other, so that'if the section 0 be fastened to the shaft, to be revolved thereby it would, by contact of the shoulders c with the shoulders of the rear section, 0, revolve it so long as the shoulders remain in contact, and of course the section 0 is not given a range of movement greater than the length of the shoulder. The circumference or outer edge of the sections a 0 when together have a curvature from front to back which it is desired the edge of the finished heel shall have, and there are cut into the edges of the two parts or sections the recesses 0 to form the cutting-edges 0. (See Fig. 5.)

Each section has a hole for the shaft and keyway extending through it. The section 0 is secured rigidly to the shaft by the headed stud or bolt 0, and it has a rand-knife and a rand-guard, which are adapted to be revolved with it. The section 0 is movable to and from the section 0, as hereinafter specified. It bears against and is secured to a collar, D, which is arranged to slide upon the shaft in opposition to the spring (I.

Eis the top-lift rest and guide. It comprises the guidingsurface e and the resting surface 6. It has a suspended restthat is, it is not carried by or attached to the shaft running the heel-trimmer, but has a hole larger than the collar D, and it is made laterally adjustable in relation to the cutter, so that the guiding-surface 6 may always be brought in proper relation to the edge of the cutter, and may be adjusted in relation thereto as it wears.

In Fig. 3 I show a view in section and elevation of the top-lift guide and rest. The disk e upon which it is mounted, has the hole e", and it is moved to adjust it, as above described, by means of the screw 0, which passes through the arms 0 carried by the stud or support e and its adj listing-screw e, and it is locked in any desired place by the locking-nut c. The arms e have a sleeve which surrounds the stud e, and they are provided with a sliding movement upon the stud e in opposition to the spring d. The arms are prevented from turning upon the stud or post e by means of the screw e", which enters the recess or guideway 0 cut therein.

The heel-rest G is provided with a lateral movement with the section 0 of the cutter and the top-lift guide and rest, and it prefer ably is carried or suspended by an arm, 9, which is attached rigidly to or forms a part of the block or sleeve from which the arms 6 project. The rest G is provided with a spindle, g, which fits or enters a hole in the end of the arm 9, in order to provide the rest with Vertical adjustment in relation to the trimmer, and it is locked in any desired position by means of the set-screw g In operation the heel is placed so that the edge of the top lift bears against the top-lift guide, and its bottom rests against a top-lift rest, and the top-lift rest is movable away from the section 0, carrying with it the section 0 of the cutter, thereby lengthening the cuttingedge of the trimmer or cutter. of the'heel is brought to rest upon the hcel- .rest G, and the upper part placed so that the rand-guard enters the crease above the outsole. The boot or shoe is then turned to bring vari ous sections of the heel-surface into position to be trimmed, and the length of the cutter is automatically varied by the work as it is thus turned, its cutting-length being lengthened by the movement of the section 0 of the cutter away from the section 0, and shortened by the inward movement of said section.

It will be observed that the top-lift rest and guide in section c of the cutter and the heelrest E are simultaneously moved transversely the line of rotation of the cutter, while the section 0 and the rand-knife and rand-guard are not moved transversely.

In Figs. 8 and 9 I show a cutter which embodies the clutch principle above described; but instead of each section of the cutter having long inclines and a shoulder. as above specified, each section of this modified form of cutter has one or more recesses, which receive one or more projections extending from the other cutter.

Fig. 9 represents the cutter, one section of which has a recess extending across it, which receives an extension formed upon the other cutter and adapted to fit it.

The cutter or trimmer has cutting-edges, provided as above specified, and is adapted to be separated in the same manner as the cutter above described, the principle difference being that the firstnamed has shoulders which come in contact with each other upon the revo- The side lution of the cutter in one direction only, while with the modified form another shoulder is introduced instead of the incline.

Having thus fully described my invention, I claim and desire to secure by Letters Patent of the United States- 1. In a trimming-machine, the combination of the separable cutter or trimmer c c, the section 0 being moved in relation to the section 0 in opposition to spring-pressure, as specified, and the non-rotating top-lift guide and rest movable with the section 0 of the cutter to and from the fixed section 0, as and for the purposes described.

2. In a trimming'machine, the two-part cutter or trimmer c c, the part 0 being fixed to its operating-shaft, the part 0 having a lateral movement thereon to and from the fixed part c, a spring for opposing its outward movement, the non-rotating top-lift guide and rest movable with the said section 0, and a heelrcst, G, also movable transversely the plane of rotation of the cutter, and simultaneously with the section a, substantially as described.

3. The combinatiomin a trimming-machine, of the fixed section 0 of the cutter, secured to its operating-shaft, the movable section 0 of the cutter, movable upon its operatingshaft to and from the section 0, the non-rotating toplift guide and rest, and means for adjusting them upon the plane of rotation of the cutter, and for providing them with a yielding movement upon a line transverse to said plane, sub

stantially as described.

4. The combination,in a trimming-machine, of a rand-guide,a rotary rand-knife,a two part cutter, c c, and a shaft for rotating the same, the section 0 of the cutter being fixed and the section 0 of the cutter having a lateral movement upon the shaft in relation to the section 0, in opposition to spring-pressure, the nonrotating top-lift guide and rest, and the heelrest G, both movable laterally simultaneously with the section 0 of the cutter, substantially as described.

5. The'combination of the fixed section 0 and the section 0 of the two-part cutter, attached to a sleeve arranged to slide upon a splined shaft, with a non-rotating top-lift guide and rest secured to said sleeve, to be movable therewith, and a spring, F, substantially as described.

OHARLES H. TRASK.

Witnesses:

F. F. RAYMOND, 2d, J. M. DOLAN. 

